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Frequently Asked Questions

How does the proprietary polyvinyl/urethane blended fabric used by DUX Inflatable Boats compare? Hypalon contains a low grade PVC and has no UV protection which causes it to turn nasty colors of brown when exposed to normal outdoor lighting conditions. All DUX Inflatable Boats use only the finest materials available and will never discolor in sunlight.

Why is water coming over my transom? You using a prop designed for a V-Hull boat. Stock props are not built for tunnel hull technology. This can be fixed by sharpening the propeller along the leading edge and camber. Ask for details or order one direct from Inflatable Productions to match your engine.

What is propeller cavitation? As a shape passes through water at an increasing speed, the pressure that holds the water to the sides and back of the shape is lowered. Depending upon the water temperature, when the pressure reaches a sufficiently low level boiling (i.e., the formation of water vapor) will begin. The collapsing action, or implosion, of the bubbles releases energy that chips away at the blades causing a "cavitation burn," or erosion to the metal. The initial cause of the low pressure may be nicks in the leading edge, too much cup, sharp leading edge corners, improper polishing, or, sometimes poor blade design. Massive cavitation by itself is rare and is usually caused by a propeller that is severely bent or has had its blade tips broken off. This results in a propeller that is far too small in diameter for the engine.

What is propeller diameter? Diameter is the distance across the circle made by the blade tips as the propeller rotates.

What is cupping? When the trailing edge of the blade is formed or cast with an edge curl it is said to have a cup. Cupped props will usually allow a faster top speed and more mid-range efficiency by allowing more positive trim with less prop slip. Cupping benefits are so desirable that nearly all modern recreational, high-performance, or racing propellers contain some degree of cup. Cupping will usually reduce full-throttle engine speed by about 100 to 200 RPM below the same pitch propeller with no cup. A propeller repair shop can increase or decrease cup to alter engine RPM to meet specific operating requirements on most propellers.

What is rake? Rake is the angle of the blade to the center of the shaft measured in degrees. Most performance propellers are angled aft to give the boat more lift without ventilating the propeller. The two common types of rake used in performance boating are parabolic and straight rake. Parabolic rake is an off-center rake line that gives the blade an appearance of a spoon-like effect. Straight rake is basically flat across the blade.

What is pitch? Pitch is the distance that a propeller would move in one revolution if it were moving through a soft solid, like a screw through wood. When a propeller is identified as 13 3/4" x 21", it has a 13 3/4" (35 cm) diameter with a pitch of 21" (53 cm). Theoretically, this propeller would move forward 21" in one revolution.

What is the maximum amount of pressure allowed during inflation? The maximum pressure allowed during inflation is 6 psi.

Can I use an air compressor or scuba tank to inflate my DUX Inflatable Boat? DUX does not endorse or advise this action. Inflating your DUX Inflatable Boat with an air compressor or scuba tank is very dangerous and can cause bodily harm. DUX Inflatable Boats will not be held liable for injuries resulting from improper inflation.

How long does it take to inflate my DUX Inflatable Boat? It varies by the model. All products include a Super 6 dual action hand pump which can inflate a 13ft boat in about 20 minutes with little effort. The pump will blow the boat up to the correct operating pressure and then will blow off the valve. The Air Daddy is the perfect fit between the pump and the DUX Inflatable Boat, as it fits all DUX boats.

Where do I sit in my DUX Inflatable Boat? Over the years DUX has designed several consoles for seating, but none have really taken off. For this reason we have decided to allow the customer to determine what he or she wants. From benches to pedestal seating, and from fiberglass to plastic aftermarket consoles, we will install any style of seating that you desire in your boat. NOTE: The boat is best with a tiller setup and very easy to drive that way. Comfort, room and pin piont handling

What is the floor made of in a DUX Inflatable Boat? DUX Inflatable Boat floors are made with a plastic composite called Kingboard, Seaboard, or other comparative composite plastics for years of use. This material is light weight with all the strength of any heavy weight floorboard. Our floorboards also require no maintenance for UV protection and are chemical resistant so you will never have to worry about cracking, repainting, or scratching

What is the life expectancy of a DUX Inflatable Boat? With proper care and handling your boat can last you indefinitely, however, we do realize that problems can arise even with the best of care, which is why DUX Inflatable Boats carries a 10 year limited warranty.

Can I pull a skier with my DUX Inflatable Boat? The DUX Performance Series of inflatable boats are designed for most water sport applications and needs. You will need to have a minimum of an 25hp (PD-400) or (PD-550) outboard motor to water ski.

Is there a wax for a surface protectant you recommend? DUX Inflatable Boats recommends that you use Turtle Wax.

What can I use to clean my DUX Inflatable Boat? DUX Inflatable Boats recommends that you use regular soap and water to clean your DUX inflatable boat.